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Definition of Signature

Signature: That part of the prescription that contains the doctor's directions to the patient. For example, the signature might say "take twice daily with food". Also known as the sig..

The word "signature" comes from the Latin "signare" meaning "to sign or mark."

Source: MedTerms™ Medical Dictionary
http://www.medicinenet.com/script/main/art.asp?articlekey=9472
Last Editorial Review: 10/30/2013

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